baber/WOPTO huggingface dataset:
Patent GB-929871-A (GB)
Title: Improvements relating to aerials
Inventor: CHARMAN FREDERICK JOHN HENRY
IPC: H01Q13/18
Filed: 1958-08-06
Abstract: 929,871. Aerials. ELECTRIC & MUSICAL INDUSTRIES Ltd. July 21, 1959 [Aug. 6, 1958], No. 25137/58. Class 40 (7). A radio aerial consists of a slot in the wall of a resonant cavity, the cavity being provided with capacitive loading to tune it to the operating frequency. The aerial may be of the suppressed type embodied in the wall of a structure 1 with the cavity of comparatively small dimensions extending only a little way into the structure. The cavity is in part closed by a plate 2A extending from one side across the mouth and to this plate is attached a channelsectioned baffle 2B whose lower flange is spaced from the bottom of the cavity by dielectric material 2D. The baffle, in effect, folds the cavity about a longitudinal axis and at the same time provides sufficient capacity loading to tune it to the operating frequency. The slot is bounded by the edge 1A of the cavity and the edge 1B of the plate 2A. It extends the full length of the cavity and may be rectilinear or the whole aerial including the slot may be curved. The slot length is made nearly threequarters of the working wavelength and to increase the bandwidth a conductor or rod 3 is placed in the slot. The position of this rod is adjusted so that it taps into the electric field across the slot and provides a transformer with a turns ratio V2/V1 as indicated on Fig. 2, and its length is determined to provide inductive reactance. The aerial feeder consists of a coaxial line 7 whose inner conductor is connected to a conductive film 5 on the inside of the dielectric window of the slot. Embedded in the window itself and parallel to, but spaced from the film 5 is a second film 6 connected to the conductor 3. The films provide series capacitance in the feed to the aerial. An equivalent circuit of the aerial is given (Fig. 3, not shown) with an explanation of how the lumped impedances of the circuit are related to the arrangement of the aerial. Two aerials according to the invention may be formed at diametrically opposite points in the wall of a cylindrical structure or mast as indicated in Fig. 4. These aerials, 13, 14, radiate in phase and are fed by sub-feeders 15 and 16 of equal length from a common feedpoint. Radiation in anti-phase may be achieved by turning one of the aerials upside-down (Fig. 5, not shown).
Patent GB-957100-A (GB)
Title: Liquid abrasive compositions
Inventor: STEPHENS DAVID WILLIAM
IPC: C11D3/14
Filed: 1961-07-13
Abstract: A stable pourable aqueous suspension comprises (a) a finely divided water-insoluble abrasive material, preferably in an amount of 35-55%, (b) not less than 1%, preferably 2-5%, sodium carboxymethylcellulose, and (c) not less than 5% of an alkali metal condensed phosphate, all percentages being by weight of the non-abrasive components present. Abrasive (a) may be felspar, pumice, kieselguhr, emery or carborundum, but is normally silica. Phosphate (c) may be a pyro- or hexameta-phosphate, but sodium tripolyphosphate is preferred.  The composition may also include small amounts, e.g. up to 5%, or anionic and nonionic surface-active agents such as soap, sodium lauryl sulphate or dodecylbenzene sulphonate, alkylphenol/ethylene oxide condensates, and (preferably) alkanolamide, e.g. lauric diethanolamide; mixtures of alkanolamides and anionic detergents are however excluded.  Sodium carbonate, sulphate or orthophosphates, ethanol perfume, dye, pigment, fluorescent agents, bactericides, preservatives and bleaching agents may also be incorporated. Specification 945,044 is referred to.
Patent GB-282316-A (GB)
Title: Improvements in unions for water-pipes and the like
IPC: F16L41/02
Filed: 1927-09-26
Abstract: 282,316. Schafer, O. Jan. 18, 1927, [Convention date]. Corrosion, preventing. -In a screwed union b for pipes a having internal lead linings f, or linings of other material not liable to become incrusted, the union itself is provided with a lining g having inwardly projecting flanges k at its ends against which the ends of the pipes a abut. The flanges k project inwardly to such an extent that they are flush with the linings of the pipes.
Patent GB-1390832-A (GB)
Title: Pulse-operated laser systems
IPC: H01S3/098
Filed: 1972-05-31
Abstract: 1390832 Lasers SIEMENS AG 31 May 1972 [25 June 1971] 25389/72 Heading H1C A laser capable of producing stable trains of closely spaced pulses has a filter within its resonator transmissive only to each mth longitudinal mode and also has a phase or amplitude modulator in the cavity driven at m. c/2L to lock the modes together. Fig. 1 shows the modulator 4, active medium 3 and filter 6 all in a resonant cavity; the modulator is driven from an external oscillator 5, but may instead be driven from the laser output to avoid frequency drifts in the oscillator, Fig. 6 (not shown). The filter 6 is, at its simplest, a quartz block which gives rise to multiple reflections and thus multiplies each pulse passing through it. The filter is frequency selective due to interference, and by adjusting its surface reflectivity and the angle of incidence used the bandwidth of the filter and the frequency interval between its passbands may be set. The interval is chosen to be a whole multiple of the mode spacing, so that the filter characteristic is as shown in Fig. 3; when this is superimposed on the cavity modes the laser output is as in Fig. 4, where only every third mode is passed with sufficient amplitude to lase. Because the mode frequency interval has thus been increased threefold the pulse repetition rate is similarly increased. The modulator 4 locks the modes so that the increased rate output is suitably stable for communications use. The effects of reflections from the filter block back into the laser body are eliminated by a pair of lenses separated by an apertured screen, Fig. 7 (not shown) with the additional advantage that the laser beam is expanded before reaching the filter. The modulator 4 may be placed in a microwave cavity, and has Brewster angle ends to avoid etalon effects.. Fig. 8 shows an arrangement which adjusts the resonator length so that the longitudinal modes fall in the centre of the filter characteristic. The resonator mirror 11 is vibrated at 1 KHz by a piezo-electric mount 16; the output is detected at 7 and passed to an electrical filter 19 which allows only 1 KHz signals to pass through it. The signal then alters a D.C. bias on a second piezo-electric mount 18 which steadily alters the resonator length. Consider now Fig. 9 which shows a mode 23 within the response curve of the optical filter 6 of Fig. 8. The mode 23 is moved from side to side, to positions 24 and 25, at 1 KHz by the vibrating mirror, and thus the laser output is amplitude modulated at 1 KHz. This causes the D.C. bias to alter until the mode is centred on the response curve 22; when this occurs the vibrating mirror sweeps the mode first beyond one side of the response curve and then beyond the other, Fig. 10 (not shown) so that the resulting output of the laser is amplitude moduated at 2 KHz. Since the detector signal is then blocked by 1 KHz filter 19 the D.C. bias remains fixed and the mode position is stabilized.
Patent GB-1427478-A (GB)
Title: Valve shaft actuation device inflammation inhibitors for cosmetic preparations
IPC: F15B15/08
Filed: 1974-06-07
Abstract: 1427478 Fluid-pressure actuators K KITAZAWA 7 June 1974 25486/74 Heading F1D An actuator, for rotating a valve, comprises a cylinder 1, Fig. 1, which is reciprocated on a piston 8 held stationary within a casing 13 by a piston rod 5. Fluid is supplied to chambers A, B through ducts 6, 7 in the piston rod. Adjustable end-stops 17 are provided and rotation of the cylinder is prevented by rods 16, Fig. 2. Rotary motion is produced by a plate 10 Fig. 2, attached to the cylinder 1, which has an eccentric pin 12 located between the arms of a U-shaped member 19 mounted on a shaft 18.
Patent GB-462693-A (GB)
Title: Process for the manufacture of new acid wool dyestuffs of the anthraquinone series
IPC: F25B1/00
Filed: 1935-09-13
Abstract: Anthraquinone dyes are made by reacting 3.4.5-trihalogenanilines with 1-amino-4-halogen-anthraquinone-2-sulphonic acids, preferably in the presence of copper salts.  The products are acid wool dyes, fast to chlorine or agents producing chlorine such as bleaching powder.  In an example, 1-amino-4-bromanthraquinone-2-sulphonic acid and 3.4.5-trichloraniline are boiled in aqueous-alcoholic solution with sodium bicarbonate and cuprous chloride (dyes wool blue shades).  The trichlor-aniline may be replaced by 3.4.5-tribromaniline or 3.5-dichloro-4-bromaniline.  Specification 10378/14, [Class 2 (iii)], is referred to.
Patent GB-1002604-A (GB)
Title: Improved method of and means for rectifier protection
IPC: H02H7/127
Filed: 1962-07-03
Abstract: 1,002,604. Converting. LICENTIA PATENTVERWALTUNGS G.m.b.H. July 3, 1962 [July 4, 1961], No. 25492/62. Heading H2F. A polyphase grid controlled rectifier with fuses in the anode circuits has an arrangement whereby the grid control is made to block the valves when one of the fuses blows. In a six-phase arrangement the valves may be blocked only after two fuses have blown. Either electrical or mechanical means may detect the blowing of a fuse.
Patent GB-1108994-A (GB)
Title: Balanced alimentary compositions
IPC: A23L1/30
Filed: 1965-06-16
Abstract: A food composition, suitable for feeding to babies, is prepared by reducing an alimentary material containing proteins and glucides, for example chicken-meat or fresh mixed vegetables, to a finely divided state, removing substantially all of any fatty substances contained therein, adding an amount of olive oil necessary to produce a balanced composition, prior to or during homogenising, and thereafter sterilising the composition.  The material may be cooked and/or salted prior to adding the oil.
Patent GB-1273970-A (GB)
Title: Flexible printing plates for rotary printing machines
Inventor: ROTH GERHARD
IPC: B41F27/12
Filed: 1971-04-19
Abstract: 1,273,970. Printing apparatus. MASCHINENFABRIK AUGSBURG NURNBERG A.G. 19 April, 1971 [9 April, 1079], No. 25565/71. Heading B6C. A flexible printing plate 1 is secured to a plate cylinder by bent-over ends 2 and registered by engagement of pins on the cylinder and on a rotatable plate-tensioning bar within the cylinder with cut-out portions in the ends 2. The edges 10 of the cut-out portions may be folded against the plate edges to provide reinforcement. The cut-out portions may be located at the sides of the ends 2, or in their centres, and may be open-ended slots or apertures surrounded on all sides by the bentover ends 2. Reinforcement may be provided by glued-on eyes in place of the folded edges 10, and the bent-over ends may be folded upon themselves for additional stiffening.
Patent GB-1206227-A (GB)
Title: Manufacture of a rutile pigment
IPC: C01G23/07
Filed: 1968-05-28
Abstract: 1,206,227. Pigmented paper laminates. TITAN G.m.b.H. 28 May, 1968 [2 June, 1967], No. 25578/68. Heading B5N. [Also in Division C1] Layers of paper which has been impregnated with a suspension of TiO 2  in a melamineformaldehyde resin solution are stacked and laminated under heat and pressure. The TiO 2  contains minor amounts of phosphorus and aluminium oxides (see Division C1).
Patent GB-186346-A (GB)
Title: Improvements in or relating to fittings for braces, stocking suspenders and like appliances for suspending wearing apparel
IPC: A41F11/02
Filed: 1922-09-21
Abstract: 186,346. Bernardi, A. Sept. 21, 1922. Tab ends and fittings; fastening wearing- apparel.-A fitting for stocking suspenders, braces, and the like comprises a pivoted jaw clip 4 supported by a ring 1, from a plate 12 attached to the strap of the braces or the like. The jaws of the clip are maintained open by a spring and are closed by the rotation of a cam-ring 10. A projection 18 on the clip engages a depression in the cam-ring at the open-jaw position shown in Fig. 2. A tongue 15 is struck up from the plate 12 and acts as a spring stop against disengagement of the ring 1 from a hook 14 on the plate 1. The jaws of the clip are lined with a material suitable for engaging fabric and are roughened. To allow rotation of the cam-ring 10, the ring 1 is arranged in a groove therein.
Patent GB-982469-A (GB)
Title: Electric motor control systems
IPC: B66C13/26
Filed: 1963-06-28
Abstract: 982,469. Control of A.C. motors; cooling electric motors. J.-M. M. NEUFVILLE, P. R. PEROTIN, and J. E. TROTTIER. June 28, 1963 [June 28, 1962], No. 25784/63. Headings H2A and H2J. A loading winch on board ship is driven by an induction motor which is started by connecting two of its phase windings 26, 27, to two phases R, S, of a three-phase power source R, S, T, the neutral 33 of the motor windings being connected to the neutral line N of the supply through a saturable reactor 30. Movement of a controller lever 13 from a central neutral position in either direction energizes one of the reversing contactors C1 or C2 and also progressively reduces the impedance of reactor windings 31, 32, by increasing the saturation current of the reactor. In the end positions of the lever 13, contactor C3 is closed to connect all three motor windings to the supply. The motor is braked by returning the control lever to the neutral position, so de-energizing the contactor C3 and reducing the driving torque. Continued movement of the lever introduces reverse-current braking, the braking torque being increased until the contactor 3 is re-closed. The saturable reactor may be replaced by a tapped inductor, or one having a movable core, or by a combination of inductor and resistor. Cooling.-The motor has a non-laminated rotor which is cooled by the internal circulation of sea water. The rotor has a high resistance so that the maximum torque is developed at zero speed.
Patent GB-1490075-A (GB)
Title: Antioxidant compositions
IPC: C08K5/53
Filed: 1974-10-11
Abstract: 1490075 Stabilizing polymers RAYCHEM CORP 11 Oct 1974 [11 Oct 1973] 25832/77 Divided out of 1490073 Heading C3P Polymers may be stabilized with antioxidant compositions comprising (a) a non-metallic hydroxyaromatic compound containing at least one sulphur atom and (b) an organic phosphonic acid or derivative RPO(OR<SP>1</SP>)(OR<SP>11</SP>) where R, R<SP>1</SP> and R<SP>11</SP>, which may be the same or different and may contain further phosphonic moieties, are substituted or unsubstituted alkyl, alkenyl, aryl, alkaryl, aralkyl, heteroaromatic or polymeric radical, or R has the above meaning and R<SP>1</SP> and/or R<SP>11</SP> are H or alone or together a metal atom or are linked together to form a ring, provided that at least one of R, R<SP>1</SP> and R<SP>11</SP> is a substituted or unsubstituted alkenyl radical. Alternatively the groups may be present in a single compound. The polymer may be an olefin, vinylidene or vinyl halide or acrylic polymer, chlorinated polyethylene or a polyether or polyester resin, and may be in the form of shaped articles, particularly heat-recoverable articles. Examples describe the stabilizing of polyethylene with anti-oxidant mixtures comprising (b) 2,4,6 - tris - (diallylphosphonato)- 1,3,5 - triazine or bis -#- (hydroxyethyl vinylphosphanato)ethyl vinylphosphonate and (a) 2,2<SP>1</SP> - thiobis - (4 - methyl - 6 - t - butylphenol), 4,41 - thiobis - (6 - t - butyl - m - cresol) or oligomers thereof, 4,4<SP>1</SP> - thiobis - (6 - t - butylo - cresol), 1,1<SP>1 </SP>- thiobis - (2 - naphthol) or bis- [(3,5 - di - t - butyl - 4 - hydroxyphenyl)propionyl-2-oxyethyl sulphide.
Patent GB-149553-A (GB)
Title: Manufacture of azo-dyestuffs and intermediate products therefor
IPC: C07C309/57
Filed: 1919-05-12
Abstract: 1 : 8-Dioxynaphthalene sulphocarboxylic acids, having a free 2- or 7-position, are prepared from naphthalene disulphocarboxylic acids having a sulpho group in 1-position by nitrating them in the free 8-position, reducing the nitro group to the amino group, replacing the amino group by hydroxyl by the diazo reaction, and finally replacing the 1-sulpho group by hydroxyl by alkali fusion.  According to examples:-2-naphthylamine-5 : 7-disulpho acid is converted into 2-cyanonaphthalene-5 : 7-disulpho acid which is saponified to naphthalene -5 : 7-disulpho - 2 - carboxylic acid; this is nitrated and the nitro body reduced to 1 - naphthylamine - 6 : 8 - disulpho -3-carboxylic acid; diazotization followed by boiling gives 1 : 8-naphthsultone-6-sulpho - 3 - carboxylic acid, which on alkali fusion yields 1 : 8-dioxynaphthalene-3-sulpho-6-carboxylic acid; by a similar procedure 1 : 8-dioxynaphthalene-4-sulpho-6-carboxylic acid is prepared starting from 2-naphthylamine-4 : 8-disulphonic acid Monoazo dyes are prepared by coupling aromatic diazo or o-oxydiazo compounds with the 1 : 8-dioxynaphthalene sulphocarboxylic acids described above.  The products are mordant dyes and may be dyed on wool with chrone mordants or printed on chrome-mordanted cotton. The mordant character of the dyes may be enhanced by using as the diazo component diazocarboxylic acids or o-oxydiazo compounds derived from salicylic acid.  According to examples, products are obtained from the following components:-2-amino-6-nitro-4-methyl-1-oxybenzene, or 2-amino-4-chlor -1-oxybenzene-6-carboxylic acid; and 1 : 8-dioxynaphthalene-3-sulpho-6-carboxylic acid or 1 : 8-dioxynaphthalene-4-sulpho-6-carboxylic acid; these give blue shades with chrome mordants on wool or cotton; p-aminoacetanilide and the two specified second components give products which after saponification of the acetyl group give grey shades on wool with chrome mordants and black on chrome-printed cotton.
Patent GB-303777-A (GB)
Title: Improvements in or relating to means for minimising or obviating the squeaking from brake drums of motor vehicles
IPC: F16D65/10
Filed: 1927-10-01
Abstract: 303,777. Barrett, A. G., and Burton, H. H. Oct. 1, 1927. Energy - absorbing elements.-To prevent the production of squeaking noises by brake drums upon the application of the brakes, there is applied to the outer periphery of the drum, a rope of rubber in which is disposed a wire core adapted to maintain the rope in tension on the drum. The rubber rope c preferably has a flat side in contact with the brake drum a and the core d may be of helical form as shown with the ends interlaced or otherwise connected together. A pin may be disposed within the ends of the core or a short length of tubing may surround them. Alternatively the core may be of straight, crimped or stranded wire.
Patent GB-886388-A (GB)
Title: Improvements relating to time interval measuring devices
Inventor: CLOOT PETER LEONARD
IPC: G04F8/00
Filed: 1959-07-29
Abstract: 886,388. Electric selective signalling systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 27, 1960 [July 29, 1959], No. 26058/59. Class 40 (1). [Also in Group XVIII] In an electric clock a constant speed motor e.g. a synchronous motor 1 drives a threedenominational rotary switch 3, 6, 9 the contacts of which are connected to corresponding electrodes of cathode glow discharge tubes 13, 14, 15 which indicate the time.
Patent GB-1507114-A (GB)
Title: Apparatus for producing conveyor belts
IPC: B29K105/08
Filed: 1976-06-24
Abstract: 1507114 Laminated conveyer belts CONTINENTAL GUMMI-WERKE AG 24 June 1976 [25 June 1975] 26236/76 Heading B5N Apparatus for producing vulcanized conveyer belts having wire or cable-like reinforcing members 9, e.g. steel, extending in the longitudinal direction parallel to one another without mutual contact, passing therethrough comprises means for feeding the reinforcing members on to the manufacturing section of the apparatus which comprises means 7 for supplying rubber cover layers to the reinforcing members and a vulcanizing press 3, means for delivering the vulcanized conveyer belt from the manufacturing section of the apparatus and two sets of friction rollers adapted to be driven in synchronism, one set of rollers 11 being provided in the feed region of the reinforcing plies and the other set 12 in the delivery region of the vulcanized conveyer belt as well as a tensioning or stressing device 15, 16 being provided in the feed region to act upon the individual reinforcing members and a fixed clamping device 4 arranged between the two sets of friction rollers and having a displaceable clamping member 14, the clamping device overlapping all the reinforcing members over their whole width and locating them in the closed position and being located between the tensioning or stressing device and the manufacturing section located directly thereafter. A calender arrangement 2 may be provided for pre-compression of the belt blanks prior to the vulcanizing press 3. The tension device may comprise a reversing roller 16 suspended on a steel wire loaded by a pressure medium working cylinder 15.
Patent GB-518331-A (GB)
Title: Improvements in the manufacture of high-pressure metal-vapour electric discharge devices
IPC: H01J5/24
Filed: 1938-09-08
Abstract: 518,331. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., FRANCIS, V. J., and KETTLEWELL, E. Sept. 8, 1938, No. 26246. Drawings to Specification. [Class 39 (i)] The vitreous envelopes of high pressure metal vapour discharge devices are strengthened by applying molten vitreous material and allowing it to harden. The applied vitreous material may be the same as or different from the material of the envelope and in the latter case has a slightly higher temperature co-efficient of expansion than the material of which the envelope is mainly composed, and may be applied around the lead-in seals after they have been completed, or around the sealing-off pip either before or after sealing. The strengthening means may also be applied in the form of bands around the envelope, particularly if it is tubular.
Patent GB-1430066-A (GB)
Title: Accessory for flash photography
IPC: G03B15/04
Filed: 1972-06-06
Abstract: 1430066 Flash accessories RIVERSIDE SUPPLIES & EQUIPMENT CO Ltd 30 May 1973 [6 June 1972] 26421/72 Heading G2X An accessory 18 which fits closely over a flashcube 15 is formed as a hollow cube with an open bottom, and has in each side face a light-controling insert, one of which is a lens. This may be a Fresnel lens (25), Fig. 1 (not shown) for concentrating the light from the flash-bulb. The other inserts are various arrangements for attenuating the light, such as parallel bars 26 or a grid 27. The accessory is placed over the cube with the appropriate insert in position. When the multiple flash unit is in the form of a bar Fig. 3 (not shown) the accessory may be a U-shaped yoke in whose legs the inserts are set.
Patent GB-172742-A (GB)
Title: Improvements in and relating to stamp delivery machines
IPC: G07F11/68
Filed: 1920-09-16
Abstract: 172,742. Rogers, T. W., (Krupp Akt.-Ges., F.). Sept. 16, 1920. Counting-apparatus with variable-step movement.-A machine for delivering stamps of several denominations is fitted with a counter actuated at each issue of a stamp by an amount proportional to the value of the stamp, so as to register the total value of stamps issued. The machine is of the kind comprising a drum or table A rotatable about a vertical axis B to bring one of the stamp rolls C towards the counter M. An arm D is fixed to the drum at the side of each roll, and carries a vertical rod D<1> stepped at the top by an amount corresponding to the value of the stamp in the roll. A reciprocable rack E on the counter has a lug e<1> adapted to engage the step in the rod D<1>. A lever H is depressed when a stamp is to be issued and the rack E is lowered by a spring G to rotate a pinion K carrying a pawl R engaging internal ratchet teeth t' on the numeral wheel T. The rack is returned by a spring (not shown) acting on the lever H. Transfer from the wheel T to higher order wheels is effected in a known way.